I am in Louisville, KY. Today there is an airshow going on. Mostly military aircraft.
I made the 6 following short missions in 2011. I trust they should still work.
Six missions in Trainers. Not really "training" missions, rather missions in prominent trainers.
T6Texanmsn: Brief Training flight in Arizona (Download a T-6 Texan)
T33mission: Brief training flight in Utah
(Download a T-33 Shooting Star)
T34mission: Brief Training flight In Florida (Download a T-34 Mentor)
T37mission: Brief Training flight in Texas
(Download a T-37 Dragonfly/Tweet)
T38mission: Brief Training flight in Texas
(Download a T-38 Talon)
T45mission: Brief Training flight in Florida (Download a T-45 Goshawk). Links to downloads in Readme.

Take off in a de Havilland Beaver DHC2 floatplane from near
the Ignace Municipal airport in Ignace, to Fort Frances and
on to Kenora in Canada.
Perform water takeoffs and landings at all locations with optional side trips to outposts.

Take off, fly to check points, locate a target or 2,
fire weapons at them, then land the Curtiss SB2C-4 Helldiver
at the KTTS NASA shuttle airport, United States.
I have made 3 missions out of 3 of the flights given
in Simviation that start from the same California location
and I found these 3 all had the same check points.
I chose not to duplicate the same routes and eliminated some
of the check points in 2 of the missions. Hope you enjoy the missions.
I decided not to make rewards this time. Consider the 3 missions your reward...

A new Mission for FSX Acceleration
You are the most experienced pilot in our team. Your job today is to transport a patient from the hospital Eisenstadt to the hospital Frauenkirchen. In normal fine weathercondition this flight would be very chilly but today we have wind up to 35 knots, heavy rain and thunderstorms.
First you start your Helicopter in Wiener Neustadt and fly to Eisenstadt to pick up the patient. Then your flight goes over the lake Neusiedl to Frauenkirchen. There you unload the patient and then you can return to Wiener Neustadt, or…………………..wait, what else is happening.
Maby you have to rescue some capsized sailors…………..
Maby you have to fight a fire, which was lightened by the thunderstorm……..

Flying a Cessna Grand Caravan in early evening,
take some tourists to 3 Greek Islands.
Namely to Naxos, Mikonos and Syros.
No additional downloads should be required.
Some extra 'eye-candy' are included in the mission.

Using a faster Bell Jet Ranger Helicopter,
make a brief tour of mostly the temples in the Japanese cities of Nara, Kyoto and Osaka.
The helicopter used seems to be only available from Flightsim.
It is much faster than the FSX supplied version.
You likely will want to keep your FSX scenery slider fairly high.

Drive 1 lap in an Orion Industries Chevy Corvette INDYPace Car
at Daytona Beach in Daytona Beach, USA.
I could not locate any drivable Speedway (free) FSX addon.
Although there are some scenery addons, they are not solid to drive on.
This mission use a circular roadway essentially where the Daytona Race course is located.
You might want to use low autogen scenery for a better view of the road.
You drive through a green hoop to start and end a lap. You will be timed.
See how well you can do!
The downloaded pace car drives and sounds quite well in my opinion.
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This is about my 50th upload, all done fairly recently. Close to 15,000 downloads so far. I likely won't be uploading missions as frequently as in the past.